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nixos/all-tests.nix: Add readOnlyPkgs module

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This commit is contained in:
Robert Hensing 2023-05-07 15:44:54 +02:00
parent cd358fe24e
commit b213791e7e
2 changed files with 22 additions and 0 deletions
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1
nixos/lib/testing/nodes.nix
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@ -17,6 +17,7 @@ let
virtualisation.qemu.package = testModuleArgs.config.qemu.package; virtualisation.qemu.package = testModuleArgs.config.qemu.package;
}) })
({ ({
key = "nodes.nix-pkgs";
config = { config = {
# Ensure we do not use aliases. Ideally this is only set # Ensure we do not use aliases. Ideally this is only set
# when the test framework is used by Nixpkgs NixOS tests. # when the test framework is used by Nixpkgs NixOS tests.

21
nixos/tests/all-tests.nix
View file

@ -65,6 +65,27 @@ let
runTestOn runTestOn
; ;
# Using a single instance of nixpkgs makes test evaluation faster.
# To make sure we don't accidentally depend on a modified pkgs, we make the
# related options read-only. We need to test the right configuration.
#
# If your service depends on a nixpkgs setting, first try to avoid that, but
# otherwise, you can remove the readOnlyPkgs import and test your service as
# usual.
readOnlyPkgs =
# TODO: We currently accept this for nixosTests, so that the `pkgs` argument
# is consistent with `pkgs` in `pkgs.nixosTests`. Can we reinitialize
# it with `allowAliases = false`?
# warnIf pkgs.config.allowAliases "nixosTests: pkgs includes aliases."
{
_class = "nixosTest";
defaults = {
nixpkgs.pkgs = pkgs;
imports = [ ../modules/misc/nixpkgs/read-only.nix ];
disabledModules = [{ key = "nodes.nix-pkgs"; }];
};
};
in { in {
# Testing the test driver # Testing the test driver